Wheel-lubricator



(No Model.)

T. J. ROBISON.

WHEEL LUBRIGATOR.

No. 452,681. Patented May 19,1891.

WITNESSES By @wfl A TTOI-PNEYS UNITED STATES PATENT OFFICE.

TOLBERT J. ROBISON, OF OURVENSVILLE, PENNSYLVANIA.

WHEEL-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 452,681, dated May 19,1891.

Application filed August 22, 1890- Serial No. 362,756. (No model.)

To all whom it may concern.-

Be it known that I, TOLBERT J'. ROBISON, of Ourwensville, in the countyof Olearfield and State of Pennsylvania, have invented a new andImproved VVheel-Lubricator, of which the iollowing is a full, clear, andexact descrip- The invention relates to that class of carwheels, loosepulleys, and wheels in general wherein an oil-chamber or alubricant-recelver is formed in the hub of the wheel and is combinedwith devices for conducting the oil to the axle or bearing-surfaces.

The object of theinvention is to provide a new and improved lubricator,which is sim ple and durable in construction, very effective in use, andnot liable to get out of order.

The invention consists of certain parts and details and combinations ofthe same, as will be hereinafter fully described, and then pointed outin the claims. Reference is to be had to the accompanying drawings,forming a part of this specification, in which similar letters ofreference indicate corresponding parts in both the figures. Figure 1 isa face view of the central part of a Wheel provided with theimprovement, parts being in section; and Fig. 2 is a transverse sectionof the same on the line 00 x of .Fig. 1.

The wheel A, on which the lubricator is applied, is provided with theusual hub B, around which is formed an oil-chamber or lubricantreceiver0, connected by openings D in the hub B with the bearing-surfaces, sothat the lubricant can fiowfrom the chamber 0 through the said openingsD to the bearing-surfaces. In the open outer end of the oil-chamber orlubricant-receiver C is formed an opening E, the inside of which issurrounded by a valveseat F, on which is adapted to be seated a valve Gfor closing the opening E. The valve G is secured on a valve-stem H,fitted to slide in a central bore formed in a plug I, extending into theoil-chamberor lubricant-receiver O, and provided with a screw-thread J,screwing in the inner end of the oil-chamber C opposite the opening E. Aspring K is coiled on the plug I and presses with its free end on thevalve G, so as to hold the latter to its seat F, surrounding the openingE. v

When the device is in the position shown in the drawings, the spring Kfirmly holds the valve G to its seat F, so that the lubricant containedin the oil-chamber or lubricant-receiver O can only pass through theopenings D to the bearing-surfaces. When the operator desires to fillthe lubricant-receiver O with a lubricant, then he passes the nozzle ofthe oil-can into the opening E and presses with the same against thevalve G, so that the latter moves inward and the contents of theinverted oil-can are deposited into the receiver U. As soon as this isaccomplished, the operator removes the nozzle of the oil-can from theopening E, so that the previouslypressed spring K again forces the valveG onto its seat F, thus effectively closing the opening E and preventingall escape'of the lubricant contained in the chamber 0.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent- 1. Thecombination, with a wheel-hub having the transverse open-ended oilchamber or receiver 0, provided with openings leading to the axle-box,of a plug having a longitudinal bore and externally threaded at itsouter end, a valve F outside of the plug, provided with a stem enteringthe bore at the inner end of the plug and closely fitting it, and aspring bearing against the inner face of the valve and pressing it awayfrom the plug, substantially as set forth.

2. In a wheel-lubricator, the combination, with an oil-chamber orlubricant-receiver provided in one end with an opening, of a plug havinga central bore and screwed in the other end of the said chamber oppositethe said opening, a valve-stem fitted to slide in the said bore, and aspring-pressed valve held on the said valve-stem and adapted to beseated over the said opening, substantially as shown and described.

TOL'BERT .T. ROBISON.

Witnesses:

ROLAND D. SWooPE, W. C. MOCLOSKY.

